Spring heat treatment device

Abstract

The utility model provides a spring heat treatment device which comprises a spring body and further comprises a shell, a heating cover is arranged in the shell, and a heating cavity is formed in the heating cover. The upper cover is arranged on the shell body; the suspension bracket is connected to the heating cover in a clamped mode, the suspension bracket comprises an outer frame and hanging rods arranged in the outer frame in a linear array mode, the spring bodies are arranged on the hanging rods, and the hanging rods are located in the heating cavity; and a control unit. According to the spring heat treatment device provided by the utility model, the spring bodies are hung on the hanging rod one by one, the spring bodies are stably hung in the heating cavity through the support of the frame so as to avoid the phenomenon of spring superposition, and meanwhile, in the heating process, the control unit controls the hanging rod to rotate in the heating cavity so as to adjust the angle; the heating effect on the spring body is improved, and the phenomenon of local temperature difference is avoided.

Description

Technical Field

[0001] This utility model relates to the technical field of spring production equipment, and more specifically to a spring heat treatment device. Background Technology

[0002] A spring is a mechanical component that has a spring-like structure. It is mainly used for cushioning and shock absorption, elastic recovery, and motion control. Common types of springs include coil springs, serpentine springs, and disc springs. Serpentine springs are widely used in sofas, mattresses, and chairs to provide necessary elastic support and improve sitting comfort.

[0003] During the production process, serpentine springs need to be heat-treated to improve their strength and toughness. However, during the tempering process, workers often use clamps to hold and transfer the serpentine springs into the heating chamber for stacking. If the springs are not stacked neatly, the airflow in the heating furnace will be obstructed, which will lead to uneven heat distribution. The parts closer to the heat source will overheat, while the parts farther away from the heat source will have a lower temperature. This uneven heating will cause the serpentine springs to twist and deform or even crack on the surface. Utility Model Content

[0004] The purpose of this invention is to address the aforementioned problems in existing technologies and to solve the problem of uneven heating of serpentine springs during tempering.

[0005] To achieve the above objectives, this utility model can be implemented through the following technical solution: a spring heat treatment device, comprising a spring body, and further comprising:

[0006] A housing, wherein a heating cover is provided inside the housing, and a heating cavity is provided inside the heating cover;

[0007] The upper cover is disposed on the housing;

[0008] A suspension bracket is attached to the heating cover. The suspension bracket includes an outer frame and hanging rods arranged in a linear array within the outer frame. A spring body is disposed on the hanging rods, and the hanging rods are located inside the heating cavity.

[0009] A control unit is disposed on the heating cover and cooperates with the hanging rod. The control unit drives the hanging rod to rotate on the outer frame.

[0010] In this embodiment of the utility model, the outer frame includes a top plate, a bottom plate, a side plate, and a support plate that engages with the heating cover. The side plate is disposed between the top plate and the bottom plate, and the support plate is disposed on the top plate.

[0011] Both the top plate and the bottom plate are provided with rotating sleeves, and the hanging rod is snapped onto the rotating sleeves.

[0012] In this embodiment of the utility model, a support rod is provided on the hanging rod.

[0013] In this embodiment of the utility model, the heating cover is provided with a locking block, and the support plate is provided with a groove that engages with the locking block.

[0014] In this embodiment of the utility model, a rack is slidably provided on the outer frame, and a gear that meshes with the rack is provided at one end of the hanging rod;

[0015] The control unit includes a bending plate, a motor, and a screw mounted on the output end of the motor. A slider is mounted on the screw and slides on the bending plate. The slider pushes against the rack and slides on the outer frame. The bending plate is engaged inside the heating cover.

[0016] In this embodiment of the utility model, a push block is provided on the rack that abuts against the slider, and an elastic element is provided between the push block and the rack.

[0017] In this embodiment of the utility model, a cooling component is provided on the housing.

[0018] In this embodiment of the utility model, a heating tube is provided inside the heating cavity of the heating cover.

[0019] In this embodiment of the utility model, a push plate is slidably disposed on the upper cover, and the push plate is located directly above the suspension frame.

[0020] In this embodiment of the utility model, the suspension frame is provided with a hanging ring.

[0021] Compared with the prior art, the advantages of this application are: the spring bodies are suspended one by one on the hanging rod, and the frame supports the spring bodies to ensure that they are stably suspended in the heating cavity, so as to avoid the phenomenon of spring stacking. At the same time, during the heating process, the control unit controls the hanging rod to rotate in the heating cavity to adjust the angle, thereby improving the heating effect on the spring bodies and avoiding the phenomenon of local temperature difference. Attached Figure Description

[0022] Figure 1 This is a structural diagram of the overall parts assembly;

[0023] Figure 2 This is a schematic diagram of the internal parts assembly structure where the top cover is separated from the shell;

[0024] Figure 3 This is a schematic diagram of the internal structure of the heating cover in half section.

[0025] Figure 4 This is a schematic diagram of the assembly structure of the suspension frame and the serpentine spring;

[0026] Figure 5It is a partial sectional plan view of the whole.

[0027] Explanation of reference numerals in the attached figures:

[0028] 1. Housing; 2. Top cover; 21. Push plate; 3. Control unit; 30. Motor; 31. Screw; 32. Bending plate; 33. Slider; 4. Cooling component; 5. Suspension frame; 50. Spring body; 51. Outer frame; 511. Top plate; 512. Support plate; 513. Side plate; 515. Bottom plate; 516. Lifting ring; 52. Hanging rod; 521. Support rod; 53. Rotating sleeve; 54. Rack; 541. Push block; 542. Elastic component; 55. Gear; 6. Heating cover; 61. Locking block; 62. Heating chamber; 63. Heating tube. Detailed Implementation

[0029] The following are specific embodiments of the present invention, and the technical solution of the present invention will be further described in conjunction with the accompanying drawings.

[0030] like Figure 1-5 As shown, a spring heat treatment apparatus includes a spring body 50, and further includes:

[0031] The housing 1 has a heating cover 6 inside, and a heating cavity 62 inside the heating cover 6.

[0032] Top cover 2, the top cover 2 is disposed on the housing 1;

[0033] The suspension frame 5 is snapped onto the heating cover 6. The suspension frame 5 includes an outer frame 51 and hanging rods 52 arranged in a linear array within the outer frame 51. The spring body 50 is disposed on the hanging rods 52, and the hanging rods 52 are located within the heating cavity 62.

[0034] Control unit 3 is disposed on the heating cover 6 and cooperates with the hanging rod 52. The control unit 3 drives the hanging rod 52 to rotate on the outer frame 51.

[0035] Specifically, the spring body 50 can be a serpentine spring. When heat treating the spring body 50, the spring bodies 50 are suspended one by one onto the hanging rod 52. The hanging rod 52 supports multiple spring bodies 50, and multiple spring bodies 50 are heat treated at one time. After suspension, the spring bodies 50 on the hanging rod 52 are placed in the heating chamber 62 through the outer frame 51. The outer frame 51 plays a supporting and stabilizing role. Then, the spring bodies 50 are heat treated. At this time, the control unit 3 drives the hanging rod 52 to rotate on the outer frame 51 to adjust the angle of the spring body 50 so that it can better contact the heat flow, thereby reducing the phenomenon of temperature difference.

[0036] As a further embodiment of this utility model, the outer frame 51 includes a top plate 511, a bottom plate 515, side plates 513, and a support plate 512 that engages with the heating cover 6. The side plates 513 are disposed between the top plate 511 and the bottom plate 515, and the support plate 512 is disposed on the top plate 511. Rotating sleeves 53 are provided on both the top plate 511 and the bottom plate 515. The hanging rod 52 is engaged with the rotating sleeve 53. The top plate 511, the bottom plate 515, and the two side plates 513 form a square frame. The hanging rod 52 is rotatably connected between the top plate 511 and the bottom plate 515 through the rotating sleeve 53, so that the hanging rod 52 can be positioned on the outer frame 51 and rotate synchronously with the spring body 50 to adjust the angle, so that the spring body 50 is better aligned with the heating tube 63, thereby improving the heating effect on the spring body 50.

[0037] As a further embodiment of this utility model, a support rod 521 is provided on the hanging rod 52. During the heat treatment process, the spring body 50 is suspended on the support rod 521. The support rod 521 can slide on the hanging rod 52, thereby adjusting the distance between the two support rods 521 according to the length of the spring body 50.

[0038] As a further embodiment provided by this utility model, the heating cover 6 is provided with a locking block 61, and the support plate 512 is provided with a groove that engages with the locking block 61. When the suspension frame 5 is placed on the heating cover 6, the two support plates 512 engage with the groove to improve the positioning and support effect of the suspension frame 5.

[0039] As a further embodiment provided by this utility model, a rack 54 is slidably disposed on the outer frame 51, and a gear 55 meshing with the rack 54 is disposed at one end of the hanging rod 52. The control unit 3 includes a bending plate, a motor 30, and a screw 31 disposed on the output end of the motor 30. A slider 33 is disposed on the screw 31 and slides on the bending plate. The slider 33 pushes the rack 54 to slide on the outer frame 51. The bending plate is engaged inside the heating cover 6. The model of the motor 30 is MHMF042L1U4-1116. Installed outside the housing 1, and the output end of the motor 30 is connected to the screw 31 through a coupling to control the screw 31 to rotate inside the housing 1. When the screw 31 rotates, the slider 33 slides on the bending plate 32 and pushes the rack 54 to slide on the outer frame 51. At this time, the gear 55 is driven to rotate by the rack 54, thus driving the hanging rod 52 to rotate, thereby adjusting the heating angle of the spring body 50 to reduce the phenomenon of local temperature difference in the spring body 50 and improve the tempering effect of the spring body 50. The bending frame is fixed inside the heating cover 6 to guide the slider 33.

[0040] As a further embodiment of this utility model, the rack 54 is provided with a push block 541 that abuts against the slider 33. An elastic element 542 is provided between the push block 541 and the rack 54. The elastic element 542 can be a spring. Through the elastic force of the elastic element 542, the two sliders 33 slide relative to each other toward the center of the rack 54, so that when the suspension frame 5 is installed in the heating cavity 62, the sliders 33 always remain in abutting against the push block 541.

[0041] As a further embodiment of this utility model, a cooling element 4 is provided on the housing 1 to prevent the temperature inside the housing 1 from exceeding the rated temperature, thereby maintaining the temperature inside the heating chamber 62 between 350 and 450°C during the tempering process and improving the heating stability of the spring body 50.

[0042] As a further embodiment of this utility model, a heating tube 63 is provided in the heating cavity 62 of the heating cover 6. The heating tube 63 is evenly arranged around the outer wall of the heating cover 6 to improve the instantaneous heating speed of the heating cavity 62. At the same time, the even arrangement of the heating ring makes the heat flow distribution of the heating cavity 62 more uniform.

[0043] As a further embodiment of this utility model, a push plate 21 is slidably disposed on the upper cover 2. The push plate 21 is located directly above the suspension bracket 5. After the spring body 50 has completed the heating and tempering time, the push plate 21 is moved to open the upper opening of the upper cover 2 halfway, so that the suspension bracket 5 can be taken out from above, thereby reducing the heat dissipation in the heating chamber 62. Similarly, when the spring needs to be tempered and heated, the push plate 21 is moved, and the suspension brackets 5 are then assembled one by one into the housing 1 for heat treatment.

[0044] As a further embodiment of this utility model, the suspension frame 5 is provided with a lifting ring 516. When the push plate 21 is moved to open the upper opening of the upper cover 2 halfway, the externally connected lifting ring 516 can remove the suspension frame 5 and the heated spring body 50 from the housing 1.

[0045] The above-described technical solution of this utility model addresses the problem that existing technical solutions are too simplistic and provides a solution that is significantly different from existing technologies. The parts not covered in this application's technical solution are the same as or can be implemented using existing technologies, and will not be described in detail here.

[0046] The technical solutions in the above embodiments have clearly and completely described the content of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

Claims

1. A spring heat treatment apparatus, comprising a spring body, characterized in that, Also includes: A housing, wherein a heating cover is provided inside the housing, and a heating cavity is provided inside the heating cover; The upper cover is disposed on the housing; A suspension bracket is attached to the heating cover. The suspension bracket includes an outer frame and hanging rods arranged in a linear array within the outer frame. A spring body is disposed on the hanging rods, and the hanging rods are located inside the heating cavity. A control unit is disposed on the heating cover and cooperates with the hanging rod. The control unit drives the hanging rod to rotate on the outer frame.

2. The spring heat treatment apparatus according to claim 1, characterized in that, The outer frame includes a top plate, a bottom plate, a side plate, and a support plate that engages with the heating cover. The side plate is disposed between the top plate and the bottom plate, and the support plate is disposed on the top plate. Both the top plate and the bottom plate are provided with rotating sleeves, and the hanging rod is snapped onto the rotating sleeves.

3. The spring heat treatment apparatus according to claim 2, characterized in that, The hanging rod is equipped with a support rod.

4. A spring heat treatment apparatus according to claim 2, characterized in that, The heating cover is provided with a locking block, and the support plate has a groove that engages with the locking block.

5. A spring heat treatment apparatus according to claim 1, characterized in that, A rack is slidably mounted on the outer frame, and a gear that meshes with the rack is provided at one end of the hanging rod; The control unit includes a bending plate, a motor, and a screw mounted on the output end of the motor. A slider is mounted on the screw and slides on the bending plate. The slider pushes against the rack and slides on the outer frame. The bending plate is engaged inside the heating cover.

6. A spring heat treatment apparatus according to claim 5, characterized in that, The rack is provided with a push block that abuts against the slider, and an elastic element is provided between the push block and the rack.

7. A spring heat treatment apparatus according to claim 1, characterized in that, The housing is equipped with a cooling element.

8. A spring heat treatment apparatus according to claim 1, characterized in that, The heating chamber of the heating cover is equipped with a heating tube.

9. A spring heat treatment apparatus according to claim 1, characterized in that, A push plate is slidably mounted on the upper cover, and the push plate is located directly above the suspension frame.

10. A spring heat treatment apparatus according to claim 9, characterized in that, The suspension frame is equipped with lifting rings.

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